
/*
 * Superfish v1.4.8 - jQuery menu widget
 * Copyright (c) 2008 Joel Birch
 *
 * Dual licensed under the MIT and GPL licenses:
 * 	http://www.opensource.org/licenses/mit-license.php
 * 	http://www.gnu.org/licenses/gpl.html
 *
 * CHANGELOG: http://users.tpg.com.au/j_birch/plugins/superfish/changelog.txt
 
 * Modified by Paul Wideman on 1/2/09 - to add "first" class to the first li
 * in the menu, and "last" class to the last li in each submenu
 */

(function($) {
  $.fn.superfish = function(op) {

    var sf = $.fn.superfish,
			c = sf.c,
			$arrow = $(['<span class="', c.arrowClass, '"> &#187;</span>'].join('')),
			over = function() {
			  var $$ = $(this), menu = getMenu($$);
			  clearTimeout(menu.sfTimer);
			  $$.showSuperfishUl().siblings().hideSuperfishUl();
			},
			out = function() {
			  var $$ = $(this), menu = getMenu($$), o = sf.op;
			  clearTimeout(menu.sfTimer);
			  menu.sfTimer = setTimeout(function() {
			    o.retainPath = ($.inArray($$[0], o.$path) > -1);
			    $$.hideSuperfishUl();
			    if (o.$path.length && $$.parents(['li.', o.hoverClass].join('')).length < 1) { over.call(o.$path); }
			  }, o.delay);
			},
			getMenu = function($menu) {
			  var menu = $menu.parents(['ul.', c.menuClass, ':first'].join(''))[0];
			  sf.op = sf.o[menu.serial];
			  return menu;
			},
			addArrow = function($a) {
			  $a.addClass(c.anchorClass).append($arrow.clone());
			},
			addLastClass = function($submenu) {
			  $("li:last", $submenu).addClass("last");
			  $("li:has(ul)", $submenu).each(function(i) { addLastClass(this); });
			};

    return this.each(function() {
      var s = this.serial = sf.o.length;
      var o = $.extend({}, sf.defaults, op);
      o.$path = $('li.' + o.pathClass, this).slice(0, o.pathLevels).each(function() {
        $(this).addClass([o.hoverClass, c.bcClass].join(' '))
					.filter('li:has(ul)').removeClass(o.pathClass);
      });
      sf.o[s] = sf.op = o;

      // my additions - add class "first" to the first li in the menu,
      // and add class "last" to the last li in each submenu
      $("li:first", this).addClass("first");
      $("li:has(ul)", this).each(function(i) { addLastClass(this); });


      $('li:has(ul)', this)[($.fn.hoverIntent && !o.disableHI) ? 'hoverIntent' : 'hover'](over, out).each(function() {
        if (o.autoArrows) addArrow($('>a:first-child', this));
      })
			.not('.' + c.bcClass)
				.hideSuperfishUl();

      var $a = $('a', this);
      $a.each(function(i) {
        var $li = $a.eq(i).parents('li');
        $a.eq(i).focus(function() { over.call($li); }).blur(function() { out.call($li); });
      });
      o.onInit.call(this);

    }).each(function() {
      var menuClasses = [c.menuClass];
      if (sf.op.dropShadows && !($.browser.msie && $.browser.version < 7)) menuClasses.push(c.shadowClass);
      $(this).addClass(menuClasses.join(' '));
    });
  };

  var sf = $.fn.superfish;
  sf.o = [];
  sf.op = {};
  sf.IE7fix = function() {
    var o = sf.op;
    if ($.browser.msie && $.browser.version > 6 && o.dropShadows && o.animation.opacity != undefined)
      this.toggleClass(sf.c.shadowClass + '-off');
  };
  sf.c = {
    bcClass: 'sf-breadcrumb',
    menuClass: 'sf-js-enabled',
    anchorClass: 'sf-with-ul',
    arrowClass: 'sf-sub-indicator',
    shadowClass: 'sf-shadow'
  };
  sf.defaults = {
    hoverClass: 'sfHover',
    pathClass: 'overideThisToUse',
    pathLevels: 1,
    delay: 800,
    animation: { opacity: 'show' },
    speed: 'normal',
    autoArrows: true,
    dropShadows: true,
    disableHI: false, 	// true disables hoverIntent detection
    onInit: function() { }, // callback functions
    onBeforeShow: function() { },
    onShow: function() { },
    onHide: function() { }
  };
  $.fn.extend({
    hideSuperfishUl: function() {
      var o = sf.op,
				not = (o.retainPath === true) ? o.$path : '';
      o.retainPath = false;
      var $ul = $(['li.', o.hoverClass].join(''), this).add(this).not(not).removeClass(o.hoverClass)
					.find('>ul').hide().css('visibility', 'hidden');
      o.onHide.call($ul);
      return this;
    },
    showSuperfishUl: function() {
      var o = sf.op,
				sh = sf.c.shadowClass + '-off',
				$ul = this.addClass(o.hoverClass)
					.find('>ul:hidden').css('visibility', 'visible');
      sf.IE7fix.call($ul);
      o.onBeforeShow.call($ul);
      $ul.animate(o.animation, o.speed, function() { sf.IE7fix.call($ul); o.onShow.call($ul); });
      return this;
    }
  });

})(jQuery);
